// Copyright (c) 2014-2019, MyMonero.com
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
//	conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//	of conditions and the following disclaimer in the documentation and/or other
//	materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//	used to endorse or promote products derived from this software without specific
//	prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
"use strict"
//
const Emojis = require('./emoji_set').Emojis
const numberOf_Emojis = Emojis.length
//
//
function EmojiWhichIsNotAlreadyInUse(inUseEmojis)
{
	inUseEmojis = inUseEmojis || []
	for (let i = 0 ; i < numberOf_Emojis ; i++) { // start looking for a usable emoji
		const this_Emoji = Emojis[i]
		if (inUseEmojis.indexOf(this_Emoji) === -1) { // if not in use
			return this_Emoji
		}
	}
	console.warn("⚠️  Ran out of emojis to select in EmojiWhichIsNotAlreadyInUse")
	const indexOf_random_emoji = Math.floor(Math.random() * numberOf_Emojis)
	var random_emoji = Emojis[indexOf_random_emoji]
	//
	return random_emoji
}
exports.EmojiWhichIsNotAlreadyInUse = EmojiWhichIsNotAlreadyInUse